The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 1990
Filed:
Sep. 29, 1988
Applicant:
Assignee:
Hughes Aircraft Company, Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25J / ;
U.S. Cl.
CPC ...
414680 ; 901 49 ; 901 29 ; 901 45 ; 901 46 ; 414730 ; 414735 ;
Abstract
The obstacle detector (24) has an upper plate (32) which mounts on the arm (22) of the positioning machine. At least three springs (50) pull the lower plate (34) upward and three projections such as balls (36) provide precise location of the lower plate (34). Lateral force causes actuation of switch (60) to terminate motion of the positioning machine. Vertical impact is sensed by upward motion of outer ball slide (68), which is resiliently held down against stop shoulder (76). The handling device has its foot (74) mounted on the bottom of the outer ball slide.